Update from Aug 29, 2020:
1. Cave H ("Emancipated Amoeba") had an unintended solution, which is now fixed. Now (hopefully) the cave is only solvable if the amoeba is prevented from converting into either boulders or diamonds. This fix was the main reason for the update, because the unintended solution destroyed the whole concept behind this cave!
2. In cave A, the magic wall no longer stops the amoeba.
3. Cave K had a lot of bonus diamonds, so I increased the requirement on lv4 and 5 and also changed the time limits a bit.
Have fun! :D